Great Start
This seemed like a really cool concept for something as simple as RPS.
I really liked it a great deal, that said, I was not able to complete your game.
In the second match with the spearknight after healing myself the game simply displays the blue "wait" message and doesn't come out of it. I can see as well that I chose paper and he chose rock, if that helps you diagnosis the error.
I'd like to see a more fleshed out version of this game
great job so far.